[Crash-utility] Crash fails to analyse kernel dump from 4.2-rc4

[Qu Wenruo]

Hi all,

I updated my kernel to 4.2-rc4 but suddenly crash failed to analyse the 
kernel with the following error message:
------
crash: invalid kernel virtual address: 170000001d  type: "possible"
WARNING: cannot read cpu_possible_map
crash: invalid kernel virtual address: 3800000046  type: "present"
WARNING: cannot read cpu_present_map
crash: invalid kernel virtual address: 240000002d  type: "online"
WARNING: cannot read cpu_online_map
crash: invalid kernel virtual address: 570000006e  type: "active"
WARNING: cannot read cpu_active_map
crash: cannot determine base kernel version
crash: /home/adam/linux-btrfs/vmlinux and vmcore do not match!
------

Crash 7.1.0 and 7.1.2 fails with the same error.

Previously I'm testing 4.2-rc1 kernel and 7.1.0 works like a charm.

So is there something wrong with the new kernel?

Thanks,
Qu